CN101775906A - Construction stretching control method used for spoke type roof structure - Google Patents

Abstract

The invention relates to a construction stretching control method used for a spoke type roof structure, which belongs to the technical field of construction. Fixed-size fixed-length manufacture and integral stretching are adopted and are realized in a construction control system comprising a simulation analysis module, a fixed-size fixed-length manufacture module, a rope length error measurement module and the like according to the following specific steps of: firstly, obtaining the blanking sizes of each component and each pull rope in the simulation analysis module and then blanking and processing each component and each pull rope in the fixed-size fixed-length manufacture module; controlling a rope length error in the rope length error measurement module; then, assembling a roof system in an assembly module according to the blanking sizes by a certain procedure and arranging a jack; and in a stretching module, starting a hydraulic jack, stretching the pull ropes of a radial direction according to a certain sequence, stopping stretching after the rope head of each pull rope reaches a target connection position, and finishing the stretching construction of a rope system. Both the rope force and the geometric configuration of the roof structure stretched and formed according to the method can accurately meet the requirement of the structural design.

Description

A kind of construction stretching control method that is used for spoke type roof structure

Technical field

The present invention relates to a kind of construction stretching control method of spoke type roof rope architecture, belong to technical field of construction.

Background technology

Spoke type roof structure is a kind of brand-new form of structure, and it is mainly by bearing post, outer press ring, interior ring and the radially Suo Zucheng that connects the two.Outer press ring generally adopts box section, steel pipe truss or concrete structure to make; Interior loop type is various, mainly is divided into flexible ring and stiffening ring, and visual path is to the form of structure of rope and decide; Radially rope has various forms such as single rope, cable truss.

Different fully with the stressed principle of rigid structures, spoke type roof structure belongs to stretching-drawing structure, and rope applies the roofing rigidity that prestressing force could form structure by giving radially, reaches initial prestressing force attitude at roof system after radially cable stretching is finished.Different fully with the construction of rigid structures, the construction of spoke type roof structure is more complicated, generally will finish house cap integral stretch-draw.

Usually the job practices that adopts at rigid structures has: moulding bed supporting method, whole lift method, integral slipping method, collapsible whole lift method etc.; This type of job practices is to solve the problem that how to overcome structure gravity in work progress emphatically; And by the Flexible Roof structure of Suo Zucheng, the difficult point of its construction and installation is prestressed foundation, and key is the stretch-draw of rope, and is no longer suitable at a series of job practicess of rigid structures.

Nowadays, it is the general job practices of prestressed structure that rope is implemented stretch-draw, generally needs during stretch-draw structure Suo Li is implemented single control or Suo Li is implemented two controls with how much position shapes; For resembling the simple single cable stretching structure of this class formation of string beam, can be easy to satisfy Structural Design Requirement to the single stool control mode of Suo Li during stretch-draw.But for the spoke type roof structure by many Suo Zucheng, because whole roof system is formed by many rope braidings, it is stronger to interact between the rope system, and wherein the adjustment of a Gen Suoli all can have influence on the variation of whole roof system Suo Li and how much position shapes.Thereby, after stretch-draw puts in place, be difficult to realize the control with how much position shapes to spoke type roof structure Suo Li by adjusting Suo Li.

The present invention is directed to spoke type roof rope architecture has proposed a kind of scale fixed length and has made construction control method with integral tension.Adopt this method, obtain the accurate blank size of each member and drag-line and carry out the processing of member and drag-line by computer simulation, error in length to drag-line in process is carried out certain control, assembles roof system according to certain procedure on ground according to blank size again; Radially a feed-through hydraulic jack is set the target link position place of rope and external pressure ring beam at each root, utilize the frock rope to pass the feed-through hydraulic jack and connect radially drag-line rope head, start hydraulic jack and in a certain order the frock rope is carried out stretch-draw, just can realize radially rustling sound head moving towards ring beam target link position place; Treat to stop stretch-draw after drag-line rope head reaches design attitude, and drag-line rope head is fixed on the otic placode that the external pressure ring beam sets in advance, remove the frock rope this moment, finishes the stretching construction of rope system.The roof structure of stretch-draw moulding according to the method, its Suo Li all can accurately satisfy the structure Design requirement with how much position shapes.

This scale fixed length that spoke type roof rope system is adopted is made the construction control scheme with integral tension, not only can increase work efficiency, reduction of erection time, and by the mechanical-electrical-hydraulic integration control method, realization is to the strictness control of stretching process, and when stretch-draw was finished, how much positions of Suo Li and roof system shape all can accurately be satisfied the structure Design requirement.

Summary of the invention

It is the construction stretching control method of roof structure that the present invention proposes a kind of radial individual layer rope that is applicable to, i.e. the construction stretching control method of scale fixed length making and integral tension.Described radial individual layer rope is that roof structure is by radially drag-line, interior ring element, external pressure ring beam, bearing post are formed; The outer press ring beam support is on bearing post, and drag-line links to each other with the external pressure ring beam and interior ring element passes through radially; Described scale fixed length is made the job practices with integral tension, it is characterized in that, be to realize according to following step in a construction control system that is made up of sunykatuib analysis module, scale fixed length making module, the long error determine module of rope, assembling module, stretch-draw module:

Step 1: set up the construction control system, comprise as lower module:

(1) sunykatuib analysis module; (2) the scale fixed length is made module; (3) the long error determine module of rope; (4) assembling module; (5) stretch-draw module; Described sunykatuib analysis module comprises embedded finite element analysis module;

Step 2: entering described sunykatuib analysis module is that roof structure carries out sunykatuib analysis to described radial individual layer rope, is specifically undertaken by following step:

Step 2.1: the described radial individual layer rope of input is the structural parameters of roof structure in described sunykatuib analysis module, comprising:

(1) classification of structural element and number comprise: drag-line a root radially, external pressure ring beam b root, interior ring element c root, bearing post d root; Wherein, interior ring element is interior ring flexible cable or interior ring stiffening member; Wherein, a 〉=1, b 〉=1, c 〉=1, d 〉=1;

(2) material properties comprises: the elastic modulus E of drag-line _c, the elastic modulus E of the steel of stiffening member _sIf interior ring element is interior ring stiffening member, described drag-line only comprises radially drag-line, and described stiffening member comprises bearing post, external pressure ring beam and interior ring stiffening member; If interior ring element is interior ring flexible cable, described drag-line comprises radially drag-line and interior ring flexible cable, and described stiffening member comprises bearing post and external pressure ring beam;

(3) the cross section attribute of each member comprises: the section form of external pressure ring beam and size, the section form of bearing post and size, the section form of interior ring element and size, the section area { A} of drag-line;

If interior ring element is interior ring stiffening member, then,

$\left\{A\right\}=\left\{\begin{array}{c}{A}_1\\ {\mathrm{<figure-callout\; id="2"\; label="A"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">A</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ A_a\end{array}\right\};$

Wherein, A _iBe the radially section area of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{A\right\}=\left\{\begin{array}{c}{A}_1\\ {\mathrm{<figure-callout\; id="2"\; label="A"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">A</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ A_{a+c}\end{array}\right\};$

Wherein, A ₁～A _aBe the section area of drag-line radially, A _A+1～A _A+cSection area for interior ring flexible cable;

(4) the stretch-draw target length of drag-line { L} and drag-line stretch-draw target internal force { T}

If interior ring element is interior ring stiffening member, then,

$\left\{L\right\}=\left\{\begin{array}{c}{L}_1\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_a\end{array}\right\};$ $\left\{T\right\}=\left\{\begin{array}{c}{T}_1\\ {\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ T_a\end{array}\right\};$

L wherein _iBe the radially stretch-draw target length of drag-line of i root, T _iBe the radially stretch-draw target internal force of drag-line of i root, 1≤i≤a; If interior ring element is interior ring flexible cable, then,

$\left\{L\right\}=\left\{\begin{array}{c}{L}_1\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{a+c}\end{array}\right\};$ $\left\{T\right\}=\left\{\begin{array}{c}{T}_1\\ {\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ T_{a+c}\end{array}\right\};$

L wherein ₁～L _aBe the stretch-draw target length of drag-line radially, L _A+1～L _A+cStretch-draw target length for interior ring flexible cable; T ₁～T _aBe the stretch-draw target internal force of drag-line radially, T _A+1～T _A+cStretch-draw target internal force for interior ring flexible cable;

(5) the design object coordinate at stiffening member control point comprises: the number n at described stiffening member control point, the design coordinate { U} at described stiffening member control point; Described stiffening member control point is positioned at splicing place of stiffening member and stiffening member, and the junction of stiffening member and flexible member;

$\left\{U\right\}=\left\{\begin{array}{c}{U}_1\\ U_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ U_n\end{array}\right\}=\left\{\begin{array}{ccc}{x}_1& y_1& z_1\\ x_2& y_2& {\mathrm{<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2\\ & \&CenterDot;\&CenterDot;\&CenterDot;& \\ x_n& y_n& z_n\end{array}\right\};$

Wherein, x _m, y _m, z _mBe respectively the component of the design object coordinate at m control point, 1≤m≤n in three directions;

(6) drag-line error in length permissible value { ε }:

If interior ring element is interior ring stiffening member, then,

$\left\{\mathrm{\&epsiv;}\right\}=\left\{\begin{array}{c}{\mathrm{\&epsiv;}}_1\\ {\mathrm{\&epsiv;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&epsiv;}}_a\end{array}\right\},$

Wherein, ε _iBe the radially making error in length permissible value of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{\mathrm{\&epsiv;}\right\}=\left\{\begin{array}{c}{\mathrm{\&epsiv;}}_1\\ {\mathrm{\&epsiv;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&epsiv;}}_{a+c}\end{array}\right\},$

Wherein, ε ₁～ε _aBe the making error in length permissible value of drag-line radially, ε _A+1～ε _A+cMaking error in length permissible value for interior ring flexible cable;

Each component of { ε } is according to following regular value: if i root drag-line length is less than 50m, and ε _iBe taken as 15mm; If i root drag-line length is greater than 50m, less than 100m, ε _iBe taken as 20mm; If i root drag-line length is greater than 100m, ε _iBe taken as 1/5000 of rope length;

Step 2.2: above-mentioned data are input in the embedded finite element analysis module, in this module, set up structural entity analysis finite element model, and calculate stiffening member and be in target bit shape { U} and drag-line are in the target internal force { state of T}; " kill " all drag-line unit then, make all drag-line unit all be in zero stress state, read each control point and deform and be { Δ U} this moment;

$\left\{\mathrm{\&Delta;U}\right\}=\left\{\begin{array}{c}{\mathrm{\&Delta;<figure-callout\; id="1"\; label="U"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">U</figure-callout>}}_1\\ {\mathrm{\&Delta;<figure-callout\; id="2"\; label="U"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">U</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&Delta;U}}_n\end{array}\right\}=\left\{\begin{array}{ccc}{\mathrm{\&Delta;x}}_1& \mathrm{\&Delta;}{\mathrm{<figure-callout\; id="1"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">y</figure-callout>}}_1& {\mathrm{\&Delta;<figure-callout\; id="1"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">z</figure-callout>}}_1\\ {\mathrm{\&Delta;x}}_2& \mathrm{\&Delta;}{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">y</figure-callout>}}_2& {\mathrm{\&Delta;<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2\\ & \&CenterDot;\&CenterDot;\&CenterDot;& \\ {\mathrm{\&Delta;x}}_n& \mathrm{\&Delta;}{y}_n& \mathrm{\&Delta;}{z}_n\end{array}\right\};$

Step 2.3: the sunykatuib analysis module passes to the scale fixed length with all data and makes module, comprises distortion { the Δ U} that each control point takes place in described structural parameters and the sunykatuib analysis;

Step 3: enter the scale fixed length and make module, the scale fixed length is made module and is received the data that the sunykatuib analysis module is transmitted, and carries out the blanking processing of member, is specifically undertaken by following step:

Step 3.1: with { L ₀Carry out the processing of drag-line as the cutting length of each drag-line:

If interior ring element is interior ring stiffening member, then,

$\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{01}\\ L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{0a}\end{array}\right\}=\left\{\begin{array}{c}{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_1/(1+{\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">T</figure-callout>}}_1/E_c{A}_1)\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2/(1+{\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2/E_c{A}_2)\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_a/(1+T_a/E_c{A}_a)\end{array}\right\};$

L wherein _0i=L _0i/ (1+T _Oi/ E _cA _0i) be the radially cutting length of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{01}\\ L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{0,a+c}\end{array}\right\}=\left\{\begin{array}{c}{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_1/(1+{\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">T</figure-callout>}}_1/E_c{A}_1)\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2/(1+{\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2/E_c{A}_2)\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{a+c}/(1+T_{a+c}/E_c{A}_{a+c})\end{array}\right\};$

Wherein, L ₀₁～L _0aBe the cutting length of drag-line radially; L _{0, a+1}～L _{0, a+c}Cutting length for interior ring flexible cable;

Step 3.2: with { U ₀As the blanking setting-out coordinate at each control point of stiffening member, carry out the processing of stiffening member;

$\left\{U_0\right\}=\left\{U\right\}+\left\{\mathrm{\&Delta;U}\right\}=\left\{\begin{array}{ccc}{x_1+\mathrm{\&Delta;x}}_1& {\mathrm{<figure-callout\; id="1"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">y</figure-callout>}}_1+\mathrm{\&Delta;}{y}_1& {\mathrm{<figure-callout\; id="1"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">z</figure-callout>}}_1+{\mathrm{\&Delta;z}}_1\\ x_2+{\mathrm{\&Delta;x}}_2& {\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">y</figure-callout>}}_2+\mathrm{\&Delta;}{y}_2& {\mathrm{<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2+{\mathrm{\&Delta;z}}_2\\ & \&CenterDot;\&CenterDot;\&CenterDot;& \\ x_n+{\mathrm{\&Delta;x}}_n& y_n+\mathrm{\&Delta;}{y}_n& z_n+\mathrm{\&Delta;}{z}_n\end{array}\right\};$

Step 4: enter the long error determine module of rope, the making error of drag-line is measured, specifically carry out according to following step:

Step 4.1: the physical length of using general dimensional measuring instrument to measure drag-line is { L ₁, the making error that can obtain drag-line is { Δ L}={L ₁}-{ L ₀,

If interior ring element is interior ring stiffening member, then,

$\left\{L_1\right\}=\left\{\begin{array}{c}{L}_{11}\\ {\mathrm{<figure-callout\; id="12"\; label="L"\; filenames="HSA00000008505700012.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{12}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{1a}\end{array}\right\};$ $\left\{\mathrm{\&Delta;L}\right\}=\left\{L_1\right\}-\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{11}-L_{01}\\ L_{12}-L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{1a}-L_{0a}\end{array}\right\};$

Wherein, L _1iBe the radially physical length of drag-line of i root, Δ L _i=L _1i-L _0iBe the radially making error of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{L_1\right\}=\left\{\begin{array}{c}{L}_{11}\\ {\mathrm{<figure-callout\; id="12"\; label="L"\; filenames="HSA00000008505700012.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{12}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{1,a+c}\end{array}\right\};$ $\left\{\mathrm{\&Delta;L}\right\}=\left\{L_1\right\}-\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{11}-L_{01}\\ L_{12}-L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{1,a+c}-L_{0,a+c}\end{array}\right\};$

Wherein, L ₁₁～L _1aBe the physical length of drag-line radially, L _1a～L _{1, a+c}The physical length of interior ring flexible cable; Δ L ₁～Δ L _aBe the making error of drag-line radially, Δ L _a～Δ L _A+cMaking error for interior ring flexible cable;

Step 4.2: if { institute among the Δ L} is important all to satisfy Δ L _k≤ ε _k, then withdraw from the long error determine module of making of rope, enter step 5; If Δ L is wherein arranged _s＞ε _s, then reenter step 3, promptly enter the scale fixed length and make in the module, adjust s root drag-line size, treat its adjustment back repeating step 4.1 and 4.2 that finishes, all less than the error permissible value, promptly { institute among the Δ L} is important all to satisfy Δ L until all drag-line errors _k≤ ζ _k

Step 5: enter assembling module, specifically undertaken by following step:

Step 5.1: will make bearing post, external pressure ring beam, the interior ring element that processing obtains in the module in the scale fixed length and carry out assembly unit: according to the setting-out coordinate { U at control point ₀The assembly unit bearing post, again according to the setting-out coordinate { U at control point ₀At bearing post top assembly unit external pressure ring beam, and on the ground of the planar central position of structure in the assembly unit ring stiffening member or connect in encircle drag-line;

Step 5.2: the target link position place at outer press ring beam and drag-line radially arranges the vertically-displacable jack; On ring stiffening member or the interior ring drag-line, the other end was connected on the frock rope in radially drag-line one end was connected; One end of frock rope links to each other with drag-line radially, and the other end passes the vertically-displacable jack;

Step 6: enter the stretch-draw module, carry out the radially stretch-draw of drag-line, specifically carry out according to following step:

Step 6.1: carry out the radially pre-tensioning of drag-line: control each vertically-displacable jack, each frock rope carried out stretch-draw, make the i root radially the internal force of drag-line reach T _i/ 100,1≤i≤a,, suspend stretch-draw;

Step 6.2: behind completing steps 6.1, with each radially the current position of connecting strand head of rope and external pressure ring beam to the distance { δ } between the target location of connecting strand head as control variables;

$\left\{\mathrm{\&delta;}\right\}=\left\{\begin{array}{c}{\mathrm{\&delta;}}_1\\ {\mathrm{\&delta;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&delta;}}_a\end{array}\right\};$

Wherein, δ _iBe the i root radially the current position of the connecting strand head of drag-line and external pressure ring beam to the distance between its target location, 1≤i≤a;

Import the grading tension scheme to the stretch-draw module:

(1) integral tension divides the j level to finish, 2≤j≤10; Stretch-draw amount to i root frock rope during the 1st～(j-1) grade of stretch-draw is δ _i/ j, i.e. each grade stretch-draw all makes the contraction in length δ of i root frock rope _i/ j; The corresponding stretch-draw amount of each frock Suo Jun stretch-draw during the stretch-draw of j level so that each radially the connecting strand head of rope and external pressure ring beam all reach its design attitude;

(2) be in following three kinds of methods any one to the method for stretching of each frock rope in each grade stretch-draw: simultaneous tension, order stretch-draw or every cable stretching; Described simultaneous tension for controlling the vertically-displacable jack of each frock rustling sound end simultaneously, is carried out stretch-draw; Described order stretch-draw for beginning from a certain frock rope, starts each vertically-displacable jack successively around the roof system hoop and carries out stretch-draw; Described every cable stretching, for beginning from a certain frock rope, skip adjacent frock rope around the roof system hoop, the frock rope that starts the vertically-displacable jack pair relevant position of frock bitter end carries out stretch-draw, the frock rope of being skipped is waited to finish a circle and carry out stretch-draw again behind cable stretching, finishes one-level stretch-draw until all frock Suo Jun;

Step 6.3: carry out the 1st grade of stretch-draw, according to the job practices of being imported to each root frock Suo Jun stretch-draw δ _i/ j;

Step 6.4: carry out the 2nd～(j-1) grade of stretch-draw, repeating step 6.3;

Step 6.5: carry out the stretch-draw of j level, each root frock rope implemented stretch-draw according to the job practices of being imported, make each radially the connecting strand head of drag-line and external pressure ring beam reach its design attitude; Stop stretch-draw;

Step 6.6: the connecting strand head is fixed on the external pressure ring beam at its design attitude place, removes the frock rope, remove the stretch-draw jack; Finish the stretch-draw of drag-line.

So far, can accurately satisfy structure design to the requirement of roof system Suo Li with how much position shapes.

Description of drawings

Fig. 1 is the roof structure schematic diagram for radial individual layer rope.

Fig. 2 is that the radial individual layer rope that is in the stretch-draw original state is the roof structure schematic diagram.

Fig. 3 is that the radial individual layer rope that is in pre-tensioning state is the roof structure schematic diagram.

Fig. 4 is that the radial individual layer rope that is in the grading tension completion status is the roof structure schematic diagram.

Fig. 5 is that the radial individual layer rope that is in the stretch-draw completion status is the roof structure schematic diagram.

Fig. 6 is every the signal of cable stretching sequence of construction, has wherein finished the stretch-draw of the rope of all odd-numbereds.

Fig. 7 is the invention process flow chart.

The specific embodiment

Below in conjunction with accompanying drawing 1～7, specify embodiments of the present invention:

As shown in Figure 1, described radial individual layer rope is that roof structure is by radially drag-line 1, interior ring element 2, external pressure ring beam 3, bearing post 4 are formed; As Fig. 7, described scale fixed length is made the job practices with integral tension, it is characterized in that, be to realize according to following step in a construction control system that is made up of sunykatuib analysis module, scale fixed length making module, the long error determine module of rope, assembling module, stretch-draw module:

Step 1: set up the construction control system, comprise as lower module:

(1) sunykatuib analysis module; (2) the scale fixed length is made module; (3) the long error determine module of rope; (4) assembling module; (5) stretch-draw module; Described sunykatuib analysis module comprises embedded finite element analysis module;

Step 2: entering described sunykatuib analysis module is that roof structure carries out sunykatuib analysis to described radial individual layer rope, is specifically undertaken by following step:

Step 2.1: the described radial individual layer rope of input is the structural parameters of roof structure in described sunykatuib analysis module, comprising:

(1) classification of structural element and number comprise: drag-line a root radially, external pressure ring beam b root, interior ring element c root, bearing post d root; Wherein, interior ring element is interior ring flexible cable or interior ring stiffening member; Wherein, a 〉=1, b 〉=1, c 〉=1, d 〉=1;

(2) material properties comprises: the elastic modulus E of drag-line _c, the elastic modulus E of the steel of stiffening member _sIf interior ring element is interior ring stiffening member, described drag-line only comprises radially drag-line, and described stiffening member comprises bearing post, external pressure ring beam and interior ring stiffening member; If interior ring element is interior ring flexible cable, described drag-line comprises radially drag-line and interior ring flexible cable, and described stiffening member comprises bearing post and external pressure ring beam;

(3) the cross section attribute of each member comprises: the section form of external pressure ring beam and size, the section form of bearing post and size, the section form of interior ring element and size, the section area { A} of drag-line;

If interior ring element is interior ring stiffening member, just,

$\left\{A\right\}=\left\{\begin{array}{c}{A}_1\\ {\mathrm{<figure-callout\; id="2"\; label="A"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">A</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ A_a\end{array}\right\};$

Wherein, A _iBe the radially section area of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{A\right\}=\left\{\begin{array}{c}{A}_1\\ {\mathrm{<figure-callout\; id="2"\; label="A"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">A</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ A_{a+c}\end{array}\right\};$

Wherein, A ₁～A _aBe the section area of drag-line radially, A _A+1～A _A+cSection area for interior ring flexible cable;

(4) the stretch-draw target length of drag-line { L} and drag-line stretch-draw target internal force { T}

If interior ring element is interior ring stiffening member, then,

$\left\{L\right\}=\left\{\begin{array}{c}{L}_1\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_a\end{array}\right\};$ $\left\{T\right\}=\left\{\begin{array}{c}{T}_1\\ {\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ T_a\end{array}\right\};$

L wherein _iBe the radially stretch-draw target length of drag-line of i root, T _iBe the radially stretch-draw target internal force of drag-line of i root, 1≤i≤a; If interior ring element is interior ring flexible cable, then,

$\left\{L\right\}=\left\{\begin{array}{c}{L}_1\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{a+c}\end{array}\right\};$ $\left\{T\right\}=\left\{\begin{array}{c}{T}_1\\ {\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ T_{a+c}\end{array}\right\};$

L wherein ₁～L _aBe the stretch-draw target length of drag-line radially, L _A+1～L _A+cStretch-draw target length for interior ring flexible cable; T ₁～T _aBe the stretch-draw target internal force of drag-line radially, T _A+1～T _A+cStretch-draw target internal force for interior ring flexible cable;

(5) the design object coordinate at stiffening member control point comprises: the number n at described stiffening member control point, the design coordinate { U} at described stiffening member control point; Described stiffening member control point is positioned at splicing place of stiffening member and stiffening member, and the junction of stiffening member and flexible member;

$\left\{U\right\}=\left\{\begin{array}{c}{U}_1\\ {\mathrm{<figure-callout\; id="2"\; label="U"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">U</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ U_n\end{array}\right\}=\left\{\begin{array}{ccc}{x}_1& y_1& z_1\\ x_2& y_2& {\mathrm{<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2\\ & \&CenterDot;\&CenterDot;\&CenterDot;& \\ x_n& y_n& z_n\end{array}\right\};$

Wherein, x _m, y _m, z _mBe respectively the component of the design object coordinate at m control point, 1≤m≤n in three directions;

(6) drag-line error in length permissible value { ε }:

If interior ring element is interior ring stiffening member, then,

$\left\{\mathrm{\&epsiv;}\right\}=\left\{\begin{array}{c}{\mathrm{\&epsiv;}}_1\\ {\mathrm{\&epsiv;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&epsiv;}}_a\end{array}\right\},$

Wherein, ε _iBe the radially making error in length permissible value of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{\mathrm{\&epsiv;}\right\}=\left\{\begin{array}{c}{\mathrm{\&epsiv;}}_1\\ {\mathrm{\&epsiv;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&epsiv;}}_{a+c}\end{array}\right\},$

Wherein, ε ₁～ε _aBe the making error in length permissible value of drag-line radially, ε _A+1～ε _A+cMaking error in length permissible value for interior ring flexible cable;

Each component of { ε } is according to following regular value: if i root drag-line length is less than 50m, and ε _iBe taken as 15mm; If i root drag-line length is greater than 50m, less than 100m, ε _iBe taken as 20mm; If i root drag-line length is greater than 100m, ε _iBe taken as 1/5000 of rope length;

Step 2.2: above-mentioned data are input in the embedded finite element analysis module, in this module, set up structural entity analysis finite element model, and calculate stiffening member and be in target bit shape { U} and drag-line are in the target internal force { state of T}; " kill " all drag-line unit then, make all drag-line unit all be in zero stress state, read each control point and deform and be { Δ U} this moment;

$\left\{\mathrm{\&Delta;U}\right\}=\left\{\begin{array}{c}{\mathrm{\&Delta;<figure-callout\; id="1"\; label="U"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">U</figure-callout>}}_1\\ {\mathrm{\&Delta;<figure-callout\; id="2"\; label="U"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">U</figure-callout>}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&Delta;U}}_n\end{array}\right\}=\left\{\begin{array}{ccc}{\mathrm{\&Delta;x}}_1& \mathrm{\&Delta;}{\mathrm{<figure-callout\; id="1"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">y</figure-callout>}}_1& {\mathrm{\&Delta;<figure-callout\; id="1"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">z</figure-callout>}}_1\\ {\mathrm{\&Delta;x}}_2& \mathrm{\&Delta;}{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">y</figure-callout>}}_2& {\mathrm{\&Delta;<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2\\ & \&CenterDot;\&CenterDot;\&CenterDot;& \\ {\mathrm{\&Delta;x}}_n& \mathrm{\&Delta;}{y}_n& \mathrm{\&Delta;}{z}_n\end{array}\right\};$

Step 2.3: the sunykatuib analysis module passes to the scale fixed length with all data and makes module, comprises distortion { the Δ U} that each control point takes place in described structural parameters and the sunykatuib analysis;

Step 3: enter the scale fixed length and make module, the scale fixed length is made module and is received the data that the sunykatuib analysis module is transmitted, and carries out the blanking processing of member, is specifically undertaken by following step:

Step 3.1: with { L ₀Carry out the processing of drag-line as the cutting length of each drag-line:

If interior ring element is interior ring stiffening member, then,

$\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{01}\\ L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{0a}\end{array}\right\}=\left\{\begin{array}{c}{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_1/(1+{\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">T</figure-callout>}}_1/E_c{A}_1)\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2/(1+{\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2/E_c{A}_2)\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_a/(1+T_a/E_c{A}_a)\end{array}\right\};$

L wherein _0i=L _0i/ (1+T _Oi/ E _cA _0i) be the radially cutting length of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{01}\\ L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{0,a+c}\end{array}\right\}=\left\{\begin{array}{c}{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_1/(1+{\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">T</figure-callout>}}_1/E_c{A}_1)\\ {\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">L</figure-callout>}}_2/(1+{\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">T</figure-callout>}}_2/E_c{A}_2)\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{a+c}/(1+T_{a+c}/E_c{A}_{a+c})\end{array}\right\};$

Wherein, L ₀₁～L _0aBe the cutting length of drag-line radially; L _{0, a+1}～L _{0, a+c}Cutting length for interior ring flexible cable;

Step 3.2: with { U ₀As the blanking setting-out coordinate at each control point of stiffening member, carry out the processing of stiffening member;

$\left\{U_0\right\}=\left\{U\right\}+\left\{\mathrm{\&Delta;U}\right\}=\left\{\begin{array}{ccc}{x_1+\mathrm{\&Delta;x}}_1& {\mathrm{<figure-callout\; id="1"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">y</figure-callout>}}_1+\mathrm{\&Delta;}{y}_1& {\mathrm{<figure-callout\; id="1"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">z</figure-callout>}}_1+{\mathrm{\&Delta;z}}_1\\ x_2+{\mathrm{\&Delta;x}}_2& {\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">y</figure-callout>}}_2+\mathrm{\&Delta;}{y}_2& {\mathrm{<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2+{\mathrm{\&Delta;<figure-callout\; id="2"\; label="z"\; filenames="HSA00000008505700011.png,HSA00000008505700012.png"\; state="\{\{state\}\}">z</figure-callout>}}_2\\ & \&CenterDot;\&CenterDot;\&CenterDot;& \\ x_n+{\mathrm{\&Delta;x}}_n& y_n+\mathrm{\&Delta;}{y}_n& z_n+\mathrm{\&Delta;}{z}_n\end{array}\right\};$

Step 4: enter the long error determine module of rope, the making error of drag-line is measured, specifically carry out according to following step:

Step 4.1: the physical length of using general dimensional measuring instrument to measure drag-line is { L ₁, the making error that can obtain drag-line is { Δ L}={L ₁}-{ L ₀, if interior ring element is interior ring stiffening member, then,

$\left\{L_1\right\}=\left\{\begin{array}{c}{L}_{11}\\ {\mathrm{<figure-callout\; id="12"\; label="L"\; filenames="HSA00000008505700012.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{12}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{1a}\end{array}\right\};$ $\left\{\mathrm{\&Delta;L}\right\}=\left\{L_1\right\}-\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{11}-L_{01}\\ L_{12}-L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{1a}-L_{0a}\end{array}\right\};$

Wherein, L _1iBe the radially physical length of drag-line of i root, Δ L _i=L _1i-L _0iBe the radially making error of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{L_1\right\}=\left\{\begin{array}{c}{L}_{11}\\ {\mathrm{<figure-callout\; id="12"\; label="L"\; filenames="HSA00000008505700012.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{12}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{1,a+c}\end{array}\right\};$ $\left\{\mathrm{\&Delta;L}\right\}=\left\{L_1\right\}-\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{11}-L_{01}\\ L_{12}-L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HSA00000008505700011.png,HSA00000008505700021.png"\; state="\{\{state\}\}">L</figure-callout>}}_{1,a+c}-L_{0,a+c}\end{array}\right\};$

Wherein, L ₁₁～L _1aBe the physical length of drag-line radially, L _1a～L _{1, a+c}The physical length of interior ring flexible cable; Δ L ₁～Δ L _aBe the making error of drag-line radially, Δ L _a～Δ L _A+cMaking error for interior ring flexible cable;

Step 4.2: if { institute among the Δ L} is important all to satisfy Δ L _k≤ ε _k, then withdraw from the long error determine module of making of rope, enter step 5; If Δ L is wherein arranged _s＞ε _s, then reenter step 3, promptly enter the scale fixed length and make in the module, adjust s root drag-line size, treat its adjustment back repeating step 4.1 and 4.2 that finishes, all less than the error permissible value, promptly { institute among the Δ L} is important all to satisfy Δ L until all drag-line errors _k≤ ε _k

Step 5: enter assembling module, specifically undertaken by following step:

Step 5.1: will make bearing post 4, external pressure ring beam 3, the interior ring element 2 that processing obtains in the module in the scale fixed length and carry out assembly unit: according to the setting-out coordinate { U at control point ₀Assembly unit bearing post 4, again according to the setting-out coordinate { U at control point ₀At bearing post top assembly unit external pressure ring beam 3, and on the ground of the planar central position of structure in the assembly unit ring stiffening member or connect in encircle drag-line 2;

Step 5.2: arrange vertically-displacable jack 7 with the target link position place of drag-line 1 radially at outer press ring beam 3; On the ring element 2, the other end was connected on the frock rope 5 in radially drag-line 1 one ends were connected; One end of frock rope 5 links to each other with drag-line 1 radially, and the other end passes vertically-displacable jack 7;

Step 6: enter the stretch-draw module, carry out the radially stretch-draw of drag-line 1, specifically carry out according to following step:

Step 6.1: as shown in Figure 3, carry out the radially pre-tensioning of drag-line 1: control each vertically-displacable jack, each frock rope carried out stretch-draw, make the i root radially the internal force of drag-line reach T _i/ 100,1≤i≤a,, suspend stretch-draw;

Step 6.2: as shown in Figure 3, behind completing steps 6.1, with each radially the connecting strand head 6 current positions of rope 1 and external pressure ring beam 3 to the distance { δ } between the target location of connecting strand head 6 as control variables;

$\left\{\mathrm{\&delta;}\right\}=\left\{\begin{array}{c}{\mathrm{\&delta;}}_1\\ {\mathrm{\&delta;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&delta;}}_a\end{array}\right\};$

Wherein, δ _iBe the i root radially the current position of the connecting strand head of drag-line 1 and external pressure ring beam 3 to the distance between its target location, 1≤i≤a;

Import the grading tension scheme to the stretch-draw module:

(1) integral tension divides the j level to finish, 2≤j≤10; Stretch-draw amount to i root frock rope during the 1st～(j-1) grade of stretch-draw is δ _i/ j, i.e. each grade stretch-draw all makes the contraction in length δ of i root frock rope _i/ j; The corresponding stretch-draw amount of each frock Suo Jun stretch-draw during the stretch-draw of j level so that each radially the connecting strand head of rope and external pressure ring beam all reach its design attitude;

(2) be in following three kinds of methods any one to the method for stretching of each frock rope in each grade stretch-draw: simultaneous tension, order stretch-draw or every cable stretching; Described simultaneous tension for controlling the vertically-displacable jack of each frock bitter end, is carried out stretch-draw simultaneously, promptly as shown in Figure 4, all frock rope c-1～c-a is carried out stretch-draw simultaneously; Described order stretch-draw, for beginning from a certain frock rope, start the frock rope that each vertically-displacable jack pair controlled successively around the roof system hoop and carry out stretch-draw, promptly as shown in Figure 4, at first stretch-draw frock rope c-1, and then stretch-draw frock rope c-2, afterwards according to this order each frock rope of stretch-draw successively, until the stretch-draw of finishing frock rope c-a; Described every cable stretching, for beginning from a certain frock rope, skip adjacent frock rope around the roof system hoop, start this frock rope of vertically-displacable jack pair that the frock rope of adjacent frock rope opposite side connected and carry out stretch-draw, the frock rope of being skipped is waited to finish a circle and carry out stretch-draw again after the cable stretching operation, finish one-level stretch-draw until all frock Suo Jun, promptly as shown in Figure 6, at first stretch-draw frock rope c-1, the rope of stretch-draw frock again c-3 finishes the stretch-draw of the frock rope of remaining all odd-numbereds, the rope of stretch-draw frock afterwards c-2 more successively, the frock rope of all the other even-numbereds of stretch-draw is successively finished one-level stretch-draw until all frock Suo Jun again;

Step 6.3: carry out the 1st grade of stretch-draw, according to the job practices of being imported to each root frock Suo Jun stretch-draw δ _i/ j;

Step 6.4: carry out the 2nd～(j-1) grade of stretch-draw, repeating step 6.3;

Step 6.5: as shown in Figure 5, carry out the stretch-draw of j level, each root frock rope implemented stretch-draw according to the job practices of being imported, make each radially the connecting strand head of drag-line and external pressure ring beam reach its design attitude; Stop stretch-draw;

Step 6.6: the connecting strand head is fixed on the external pressure ring beam at its design attitude place, removes the frock rope, remove the stretch-draw jack; Finish the stretch-draw of drag-line.

Claims (1)

1. construction stretching control method that is used for spoke type roof structure, it is characterized in that, be to realize according to particular step in a construction control system that is made up of sunykatuib analysis module, scale fixed length making module, the long error determine module of rope, assembling module, stretch-draw module; The construction stretching control method of described spoke type roof structure is used for the construction of spoke type roof structure, and described spoke type roof structure is by radially drag-line, interior ring element, external pressure ring beam, bearing post are formed; The outer press ring beam support is on bearing post, and drag-line links to each other with the external pressure ring beam and interior ring element passes through radially;

The construction stretching control method of described spoke type roof structure is specifically undertaken by following step:

Step 1: set up the construction control system, comprise as lower module:

(1) sunykatuib analysis module; (2) the scale fixed length is made module; (3) the long error determine module of rope; (4) assembling module; (5) stretch-draw module; Described sunykatuib analysis module comprises embedded finite element analysis module;

Step 2: entering described sunykatuib analysis module is that roof structure carries out sunykatuib analysis to described radial individual layer rope, is specifically undertaken by following step:

Step 2.1: the described radial individual layer rope of input is the structural parameters of roof structure in described sunykatuib analysis module, comprising:

(1) classification of structural element and number comprise: drag-line a root radially, external pressure ring beam b root, interior ring element c root, bearing post d root; Wherein, interior ring element is interior ring flexible cable or interior ring stiffening member; Wherein, a 〉=1, b 〉=1, c 〉=1, d 〉=1;

(2) material properties comprises: the elastic modulus E of drag-line _c, the elastic modulus E of the steel of stiffening member _sIf interior ring element is interior ring stiffening member, described drag-line only comprises radially drag-line, and described stiffening member comprises bearing post, external pressure ring beam and interior ring stiffening member; If interior ring element is interior ring flexible cable, described drag-line comprises radially drag-line and interior ring flexible cable, and described stiffening member comprises bearing post and external pressure ring beam;

(3) the cross section attribute of each member comprises: the section form of external pressure ring beam and size, the section form of bearing post and size, the section form of interior ring element and size, the section area { A} of drag-line;

If interior ring element is interior ring stiffening member, then,

$\left\{A\right\}=\left\{\begin{array}{c}{A}_1\\ A_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ A_a\end{array}\right\};$

Wherein, A _iBe the radially section area of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{A\right\}=\left\{\begin{array}{c}{A}_1\\ A_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ A_{a+c}\end{array}\right\};$

Wherein, A ₁～A _aBe the section area of drag-line radially, A _A+1～A _A+cSection area for interior ring flexible cable;

(4) the stretch-draw target length of drag-line { L} and drag-line stretch-draw target internal force { T}

If interior ring element is interior ring stiffening member, then,

$\left\{L\right\}=\left\{\begin{array}{c}{L}_1\\ L_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_a\end{array}\right\};\left\{T\right\}=\left\{\begin{array}{c}{T}_1\\ T_2\\ ...\\ T_a\end{array}\right\};$

L wherein _iBe the radially stretch-draw target length of drag-line of i root, T _iBe the radially stretch-draw target internal force of drag-line of i root, 1≤i≤a; If interior ring element is interior ring flexible cable, then,

$\left\{L\right\}=\left\{\begin{array}{c}{L}_1\\ L_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{a+c}\end{array}\right\};\left\{T\right\}=\left\{\begin{array}{c}{T}_1\\ T_2\\ ...\\ T_{a+c}\end{array}\right\};$

L wherein ₁～L _aBe the stretch-draw target length of drag-line radially, L _A+1～L _A+cStretch-draw target length for interior ring flexible cable; T ₁～T _aBe the stretch-draw target internal force of drag-line radially, T _A+1～T _A+cStretch-draw target internal force for interior ring flexible cable;

(5) the design object coordinate at stiffening member control point comprises: the number n at described stiffening member control point, the design coordinate { U} at described stiffening member control point; Described stiffening member control point is positioned at splicing place of stiffening member and stiffening member, and the junction of stiffening member and flexible member;

$\left\{U\right\}=\left\{\begin{array}{c}{U}_1\\ U_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ U_n\end{array}\right\}=\left\{\begin{array}{ccc}{x}_1& y_1& z_1\\ x_2& y_2& z_2\\ & ...& \\ x_n& y_n& z_n\end{array}\right\};$

Wherein, x _m, y _m, z _mBe respectively the component of the design object coordinate at m control point, 1≤m≤n in three directions;

(6) drag-line error in length permissible value { ε }:

If interior ring element is interior ring stiffening member, then,

$\left\{\mathrm{\&epsiv;}\right\}=\left\{\begin{array}{c}{\mathrm{\&epsiv;}}_1\\ {\mathrm{\&epsiv;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&epsiv;}}_a\end{array}\right\},$

Wherein, ε _iBe the radially making error in length permissible value of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{\mathrm{\&epsiv;}\right\}=\left\{\begin{array}{c}{\mathrm{\&epsiv;}}_1\\ {\mathrm{\&epsiv;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&epsiv;}}_{a+c}\end{array}\right\},$

Wherein, ε ₁～ε _aBe the making error in length permissible value of drag-line radially, ε _A+1～ε _A+cMaking error in length permissible value for interior ring flexible cable;

Each component of { ε } is according to following regular value: if i root drag-line length is less than 50m, and ε _iBe taken as 15mm; If i root drag-line length is greater than 50m, less than 100m, ε _iBe taken as 20mm; If i root drag-line length is greater than 100m, ε _iBe taken as 1/5000 of rope length;

Step 2.2: above-mentioned data are input in the embedded finite element analysis module, in this module, set up structural entity analysis finite element model, and calculate stiffening member and be in target bit shape { U} and drag-line are in the target internal force { state of T}; " kill " all drag-line unit then, make all drag-line unit all be in zero stress state, read each control point and deform and be { Δ U} this moment;

$\left\{\mathrm{\&Delta;U}\right\}=\left\{\begin{array}{c}{\mathrm{\&Delta;U}}_1\\ {\mathrm{\&Delta;U}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&Delta;U}}_n\end{array}\right\}=\left\{\begin{array}{ccc}\mathrm{\&Delta;}{x}_1& \mathrm{\&Delta;}{y}_1& {\mathrm{\&Delta;z}}_1\\ \mathrm{\&Delta;}{x}_2& \mathrm{\&Delta;}{y}_2& \mathrm{\&Delta;}{z}_2\\ & ...& \\ \mathrm{\&Delta;}{x}_n& \mathrm{\&Delta;}{y}_n& \mathrm{\&Delta;}{z}_n\end{array}\right\};$

Step 2.3: the sunykatuib analysis module passes to the scale fixed length with all data and makes module, comprises distortion { the Δ U} that each control point takes place in described structural parameters and the sunykatuib analysis;

Step 3: enter the scale fixed length and make module, the scale fixed length is made module and is received the data that the sunykatuib analysis module is transmitted, and carries out the blanking processing of member, is specifically undertaken by following step:

Step 3.1: with { L ₀Carry out the processing of drag-line as the cutting length of each drag-line:

If interior ring element is interior ring stiffening member, then,

$\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{01}\\ L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{0a}\end{array}\right\}=\left\{\begin{array}{c}{L}_1/(1+T_1/E_c{A}_1)\\ L_2/(1+T_2/E_c{A}_2)\\ ...\\ L_a/(1+T_a/E_c{A}_a)\end{array}\right\};$

L wherein _0i=L _0i/ (1+T _Oi/ E _cA _0i) be the radially cutting length of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{01}\\ L_{02}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{0,a+c}\end{array}\right\}=\left\{\begin{array}{c}{L}_1/(1+T_1/E_c{A}_1)\\ L_2/(1+T_2/E_c{A}_2)\\ ...\\ L_{a+c}/(1+T_{a+c}/E_c{A}_{a+c})\end{array}\right\};$

Wherein, L ₀₁～L _0aBe the cutting length of drag-line radially; L _{0, a+1}～L _{0, a+c}Cutting length for interior ring flexible cable; Step 3.2: with { U ₀As the blanking setting-out coordinate at each control point of stiffening member, carry out the processing of stiffening member;

$\left\{U_0\right\}=\left\{U\right\}+\left\{\mathrm{\&Delta;U}\right\}=\left\{\begin{array}{ccc}{x}_1+\mathrm{\&Delta;}{x}_1& y_1+{\mathrm{\&Delta;y}}_1& z_1+{\mathrm{\&Delta;z}}_1\\ x_2+\mathrm{\&Delta;}{x}_2& y_2+{\mathrm{\&Delta;y}}_2& z_2+\mathrm{\&Delta;}{z}_2\\ & ...& \\ x_n+\mathrm{\&Delta;}{x}_n& y_n+{\mathrm{\&Delta;y}}_n& z_n+{\mathrm{\&Delta;z}}_n\end{array}\right\};$

Step 4: enter the long error determine module of rope, the making error of drag-line is measured, specifically carry out according to following step:

Step 4.1: the physical length of using general dimensional measuring instrument to measure drag-line is { L ₁, the making error that can obtain drag-line is { Δ L}={L ₁}-{ L ₀,

If interior ring element is interior ring stiffening member, then,

$\left\{L_1\right\}=\left\{\begin{array}{c}{L}_{11}\\ L_{12}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{1a}\end{array}\right\};\left\{\mathrm{\&Delta;L}\right\}=\left\{L_1\right\}-\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{11}-L_{01}\\ L_{12}-L_{02}\\ ...\\ L_{1a}-L_{0a}\end{array}\right\};$

Wherein, L _1iBe the radially physical length of drag-line of i root, Δ L _i=L _1i-L _0iBe the radially making error of drag-line of i root, 1≤i≤a;

If interior ring element is interior ring flexible cable, then,

$\left\{L_1\right\}=\left\{\begin{array}{c}{L}_{11}\\ L_{12}\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ L_{1,a+c}\end{array}\right\};\left\{\mathrm{\&Delta;L}\right\}=\left\{L_1\right\}-\left\{L_0\right\}=\left\{\begin{array}{c}{L}_{11}-L_{01}\\ L_{12}-L_{02}\\ ...\\ L_{1,a+c}-L_{0,a+c}\end{array}\right\};$

Wherein, L ₁₁～L _1aBe the physical length of drag-line radially, L _1a～L _{1, a+c}The physical length of interior ring flexible cable; Δ L ₁～Δ L _aBe the making error of drag-line radially, Δ L _a～Δ L _A+cMaking error for interior ring flexible cable;

Step 4.2: if { institute among the Δ L} is important all to satisfy Δ L _k≤ ε _k, then withdraw from the long error determine module of making of rope, enter step 5; If Δ L is wherein arranged _s＞ε _s, then reenter step 3, promptly enter the scale fixed length and make in the module, adjust s root drag-line size, treat its adjustment back repeating step 4.1 and 4.2 that finishes, all less than the error permissible value, promptly { institute among the Δ L} is important all to satisfy Δ L until all drag-line errors _k≤ ε _k

Step 5: enter assembling module, specifically undertaken by following step:

Step 5.1: will make bearing post, external pressure ring beam, the interior ring element that processing obtains in the module in the scale fixed length and carry out assembly unit: according to the setting-out coordinate { U at control point ₀The assembly unit bearing post, again according to the setting-out coordinate { U at control point ₀At bearing post top assembly unit external pressure ring beam, and on the ground of the planar central position of structure in the assembly unit ring stiffening member or connect in encircle drag-line;

Step 5.2: the target link position place at outer press ring beam and drag-line radially arranges the vertically-displacable jack; On ring stiffening member or the interior ring drag-line, the other end was connected on the frock rope in radially drag-line one end was connected; One end of frock rope links to each other with drag-line radially, and the other end passes the vertically-displacable jack;

Step 6: enter the stretch-draw module, carry out the radially stretch-draw of drag-line, specifically carry out according to following step:

Step 6.1: carry out the radially pre-tensioning of drag-line: control each vertically-displacable jack, each frock rope carried out stretch-draw, make the i root radially the internal force of drag-line reach T _i/ 100,1≤i≤a suspends stretch-draw;

Step 6.2: behind completing steps 6.1, with each radially the current position of connecting strand head of rope and external pressure ring beam to the distance { δ } between the target location of connecting strand head as control variables;

$\left\{\mathrm{\&delta;}\right\}=\left\{\begin{array}{c}{\mathrm{\&delta;}}_1\\ {\mathrm{\&delta;}}_2\\ \&CenterDot;\&CenterDot;\&CenterDot;\\ {\mathrm{\&delta;}}_a\end{array}\right\};$

Wherein, δ _iBe the i root radially the current position of the connecting strand head of drag-line and external pressure ring beam to the distance between its target location, 1≤i≤a;

Import the grading tension scheme to the stretch-draw module:

(1) integral tension divides the j level to finish, 2≤j≤10; Stretch-draw amount to i root frock rope during the 1st～(j-1) grade of stretch-draw is δ _i/ j, i.e. each grade stretch-draw all makes the contraction in length δ of i root frock rope _i/ j; The corresponding stretch-draw amount of each frock Suo Jun stretch-draw during the stretch-draw of j level so that each radially the connecting strand head of rope and external pressure ring beam all reach its design attitude;

(2) be in following three kinds of methods any one to the method for stretching of each frock rope in each grade stretch-draw: simultaneous tension, order stretch-draw or every cable stretching; Described simultaneous tension for controlling the vertically-displacable jack of each frock rustling sound end simultaneously, is carried out stretch-draw; Described order stretch-draw for beginning from a certain frock rope, starts each vertically-displacable jack successively around the roof system hoop and carries out stretch-draw; Described every cable stretching, for beginning from a certain frock rope, skip adjacent frock rope around the roof system hoop, the frock rope that starts the vertically-displacable jack pair relevant position of frock bitter end carries out stretch-draw, the frock rope of being skipped is waited to finish a circle and carry out stretch-draw again behind cable stretching, finishes one-level stretch-draw until all frock Suo Jun;

Step 6.3: carry out the 1st grade of stretch-draw, according to the job practices of being imported to each root frock Suo Jun stretch-draw δ _i/ j;

Step 6.4: carry out the 2nd～(j-1) grade of stretch-draw, repeating step 6.3;

Step 6.5: carry out the stretch-draw of j level, each root frock rope implemented stretch-draw according to the job practices of being imported, make each radially the connecting strand head of drag-line and external pressure ring beam reach its design attitude; Stop stretch-draw;

Step 6.6: the connecting strand head is fixed on the external pressure ring beam at its design attitude place, removes the frock rope, remove the stretch-draw jack; Finish the stretch-draw of drag-line.

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